03/10/2026
Not every mole is dangerous, but knowing what to look for can be lifesaving. Dermatology experts recommend using the ABCDE rule when evaluating a mole. Watch for Asymmetry (one half doesn’t match the other), irregular Borders, uneven or multiple Colors, a Diameter larger than 6mm (about the size of a pencil eraser), and any Evolution, meaning changes in size, shape, color, or symptoms like itching or bleeding.
It’s also important to pay attention to the “ugly duckling” sign, which is a mole that looks noticeably different from the others on your body. New moles appearing in adulthood, sores that don’t heal, or spots that bleed spontaneously should always be assessed.
Skin cancer, including melanoma, is highly treatable when detected early. If you’re unsure, it’s always safer to have a professional skin exam. Annual skin checks and monitoring changes at home are key steps in protecting your skin health.
If something looks different, changing, or concerning, book an assessment. Early detection matters.
Contact either of our locations today for more information.
Calgary : (403) 263-0661
Okotoks : (403) 982-7771